Derivatives of partial eigendecomposition of a real symmetric matrix for degenerate cases
Muhammad Kasim · arXiv (Cornell University) · 2020
This paper presents the forward and backward derivatives of partial eigendecomposition, i.e. where it only obtains some of the eigenpairs, of a real symmetric matrix for degenerate cases. The numerical calculation of forward and backward derivatives can be implemented even if the degeneracy never disappears and only some eigenpairs are available.